:root{--bg:#F4F1F8;--deep:#E4DEEC;--paper:#FBF8FF;--sub:#EEE8F4;--ink:#161418;--text:#2A242C;--muted:#5A5460;--soft:#7A7480;--blue:#4A8AB8;--pink:#C46A8A;--green:#6A9A48;--gold:#C4A04A;--purple:#6A4A9A;--line:rgba(22,20,24,.12);--shadow:0 12px 28px rgba(22,20,24,.08);--glow:0 6px 16px rgba(106,74,154,.18)}
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@media(max-width:480px){.brand-actions{gap:4px}.app-link,.menu-button{padding:0 10px}.footer-grid,.drawer-groups{grid-template-columns:1fr}.surface,.paper-card,.term-block,.method-card{padding:18px}}

.page-index .hero-note h1{max-width:680px}.page-jia .center-sheet{max-width:800px}.page-zhuan .topic-row{border-left-width:6px}.page-jian .double-color .card:nth-child(odd):before{background:var(--green)}